/*
 * ProGuard -- shrinking, optimization, obfuscation, and preverification of Java bytecode.
 *
 * Copyright (c) 2002-2018 GuardSquare NV
 *
 * This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later
 * version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this program; if not, write to the Free
 * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
package a.gui.proguard.gui.splash;

/**
 * This Timing ramps up linearly from 0 to 1 in a given repeated time interval.
 *
 * @author Eric Lafortune
 */
public class SawToothTiming implements Timing {
    private final long period;
    private final long phase;

    /**
     * Creates a new SawToothTiming.
     * 
     * @param period the time period for a full cycle.
     * @param phase the phase of the cycle, which is added to the actual time.
     */
    public SawToothTiming(long period, long phase) {
        this.period = period;
        this.phase = phase;
    }

    // Implementation for Timing.

    public double getTiming(long time) {
        // Compute the translated and scaled saw-tooth function.
        return (double)((time + phase) % period) / (double)period;
    }
}
